General Confederation of the Kingdom of Poland

Kingdom of Poland
1812–1813
Military banner Coat of arms
Seal:
The territories of the General Confederation of the Kingdom of Poland, including the Duchy of Warsaw, and the Lithuanian Provisional Governing Commission, at their territorial peak in 1812.
Capital	Warsaw
Common languages	Polish, French, German, Lithuanian, Belarusian
Demonym(s)	Polish
Government	Constitutional monarchy
King
• 1812-1813	Frederick Augustus I
Marshal of the General Council
• 1812–1813	Adam Kazimierz Czartoryski
History
• Declared	28 June 1812
• Dissolved	30 April 1813
Currency	Złoty
Preceded by Succeeded by Duchy of Warsaw Lithuanian Provisional Governing Commission Duchy of Warsaw Russian Empire
Today part of	Lithuania, Belarus, Poland

The General Confederation of the Kingdom of Poland (28 June 1812 – 30 April 1813, Polish Konfederacja Generalna Królestwa Polskiego) was a governing body of the Duchy of Warsaw created by Napoleon Bonaparte and the Polish political elite on the onset of Napoleon's campaign against Russia, which was proclaimed as "the second Polish war". It took the form of a confederated sejm (parliament). Officially assembled on the 28th of June, 1812,^[1] it oversaw the formal transformation of the Duchy of Warsaw into the "Kingdom of Poland".

The newly renamed state laid claim to the territory annexed by the Russian Empire during the partitions, the so called "seized lands" or "seized country" (Polish Ziemie zabrane), which were formally retaken in July of 1812. After the defeat of Napoleon in 1813 and the Russian occupation of the Duchy, the Confederation's accomplishments were rendered null in practice.